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Collisionality: Difference between revisions
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assuming ''v > v*'', where ''m<sub>r</sub> = mm*/(m+m*)'' is the reduced mass and ''n*'' the bulk particle density. | assuming ''v > v*'', where ''m<sub>r</sub> = mm*/(m+m*)'' is the reduced mass and ''n*'' the bulk particle density. | ||
The factor ln Λ appears due to the accumulation of many small-angle collisions within a Debye sphere. | The factor ln Λ appears due to the accumulation of many small-angle collisions within a [[Debye length|Debye sphere]]. | ||
== Dimensionless collisionality == | == Dimensionless collisionality == | ||